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411 REFERENCE · Wiktionary

Hess's law

Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.

English Etymology en Swiss-Russian chemist Germain Henri Hess =, who published it in 1840. Proper noun A relationship in physical chemistry stating that the total enthalpy change during the complete course of a reaction is the same whether the reaction is made in one step or in several steps. Related terms en hessite